Safety-fuse and line-disconnecting switch.



S. B. WAY & J. L. PAY. SAFETY FUSE AND LINE DISGONNBGTING SWITCH.

APPLICATION FILEDA'PB.. l2, 1909.

Patented Mar. 7, 1911.

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'\ Figureel is a" perspective view of UNITED sTATEs ritTENT oEEicE.

SYLVFSTR BaWAY AND JOHN L. PAY, QF ST.. LQUIS, MISSOURI.

lSAFE'JEY--FUSE AND LINE-DSCONNECTING SVTITCH.l

Specication o1' Letters Patent.

Patented Mar. 7, 1911.

Application tiled April 12, 1908. Serial lo. 489,879.

To all whom'it may concern:

Be it known `that we, SYLvnsTEn B. WAY and`JoHN L. FAY, citizens ofthe United States, and residents of St. Louis, Missouri, have invented 'pcertain new and use fulDImprovements in Safety-Fuses and yLine-Disconnectinfg Switches, of which the following .is a speci cation containing a full, clear, and exact description, referencebeing had to the accompanying drawings," forming a. part p hereof.

, Our invention relates generally to safety Ifuses and line disconnecting switches, and particularly to a disconnecting switch wherein is used the expulsion or non-arcmg type of fuses.

To the above purposes, our invention consists in certain nove i and arrangement of parts whichv will be hereinafter more fully set forth, pointed out in the claims, and illustrated in the accompanying drawings, in which invention with the metal box in section;

t Fig. 2 isla section taken on the line 2-2 of Fig.v 1; and Fig. 3 is line 3 3 of Fig. 1. i y

yReferring by numerals to the accompanying drawin 1 indicates a metal box or housing which is of theusual. construction, only it is provided with a removable bottom portion 1, said metal box or housing being provided with a door 2, which door 1s fastened by the usual handle 3. Properly sea section taken on the vcured in the box or housingl 1 is an insulating base 4, of marble or any other suitable insulating material, and mounted on saidv l base are terminal binding posts 5 and 6.

which will be in proper relation thereto, and

,constructed prefera tically square in cro i carrying blocleis pro 'ded adjacent one end 7 and.8 indicate the contact clips, which are secured to the base 4 in lany suitablemechanical manner, and-are electrically connected to the bindingor terminal" posts 5 and 6. Said contact clips are practically U- shaped. Located rbelow `the contact 7 and roperly se-2 cured to the-base 4, is a stud 9, ne obect of hereinafter more ful y described.

10 .indicates Aan insulated ,fusecarryin block or 'holder for the fuse, which bloc t' may be constructed of an proper insulating material and maly)l f d d yo woo an prac- 2 section.- Said fusefeatures of construction be o lany shape,`but is with a contact 11, which lis adapted to engage or contact 'with the contacts 7 carried by the base 4, and with a similar contact 12 carried adjacent the opposite end of said fuse-carrying block orv holder, which is adapted to engage with the contact 8,-the

contacts 11 and 12 being insulated from The contacts 13 and 14 are for the purpose of cari-yin and holding the fuse cartridge, 15, which use cartridge is of the well known expulsionl type of fuse as shown, but other forms of fuses `may be employed. Secured.

to the upper end of the fuse block 10 isan ari-i116, havin in its free end an opening 17. The lower entfr of the block is rounded, as at 18, and providedfwith a transverse opening 19, in which thef'stud 9 may be inserted. In

other words, the block 10 which carries 'the fuse cartridge, .is pivoted toand removable Y from the base 4. Y

In order to disconnect the line,or in order to inserta new fuse, it is only necessary for the operator to take a piece of wood, or other insulating material, having a hook or prong, and insert the same in the hole 17 of the arm 16, and by pullinv downwardly or forwardly on said arm the use block will assume a position as shown by dotted lines in Fig. 1,`and may be disconnected fromothe block l When the fuse block 10 has assumed the position as shown in F ig.' 1 in dotted lines, wherein it is entirely disconnected from the contacts, the block may be removed laterally from the stud 9, the cartridge chamber. 15

yremoved and anew fuse inserted-, and' the .fuse block may be inserted back onto the stud and swung into the proper connected position. The position of the stud 9 is such with relation tothe contact 7 that the block l 10 cannot be removed jfrom the stud 9 until' .it has been entirely disengaged from theA contacts. i

By v'the use of a disconnecting switch as heretofore described, it is racticallyimpossible for the operator to' hurt in the renewing and replacing of the fuses andputting the line in service, as, as heretofore descrlbed, the insulated fuse block carrying the fuse chamber can be swung t of connection with the circuit and can readily removed, and all thatl is necessary in carrying out this operation is the use of an appliance as heretofore stated.

It will be seen from the foregoing that our invention really constitutes a line fuse and line switch in one structure, and ermits the'` removal of the switch mem er, disconnectingk it from the heavily charged conductors, and then its bodily removal from the casing in which it is mounted for the examination and renewal of the fuse cartridge. By our improved construction the operator can pull down the switch member,`which disconnects itfrom the line, remove the switch member from the box and then remove the fuse.

having an opening therein,l

If the bottom of the box l* should become burned by the explosion of the vaporized fuse,it may be readily replaced.

We claim:

l. A line fuse and switch, comprising a casing havin a removable bottom, an insulated base ed to said casing, contacts secured to said base, a stud secured to said base below the contacts, an insulated fuse- .carrying block pivotally and removablly; mounted on said stud, whereby said bloc I may be first swung into aposition at right angles -to the base, disconnecting it from the electrically charged conductors, land then bodily removed from the casing for the replacement of the fuse cartridge on the fuse carrying block, yand contacts mounted on said lfuse-carrying block. F*

2. A line fuse and switch, comprising a casing provided with a 'removable bottom an insulated base, contacts secured to said base, a stud "secured to said base beyond the contacts, an insulated fuse-carrying block pivotallyv and removably mounted on said stud, whereby said block may be first swung into a position at right angles to the base, disconnecting it from the electrically charged conductors, and then bodily removed from the casing for the replacement of the fuse cartridge on the fuse carrying block, resilient contacts secured to said fuse-carrying block,

and a perforated arm secured to said fuse! carrying block.

3. A line fuse and switch,.com rising a casing, an insulated base mounte in said casing, contacts secured to said base, a laterally projecting stud secured to said base beyond the contacts, an insulated block prof vided with a cut-away corner, pivotally and laterally removably mounted on said stud, whereby said block may be swung in a position and at an angle not greater than a right angle to the base, and resilient contacts insulated from each other mounted on said block for receiving the fuse.

LA line fuse and switch com rising a casing, an insulated base mountev 'in said casing, contacts secured to said base, a 'bearing `secured to said base beyond the contacts,

Van insulated fuse-carrying block pivotally and removably mounted onl said bearing, whereby said block may be first swung into a osition atan angle to the' base and maintained'in said osition by said bearing, disconnecting it rom'the electrically charged conductors, and thenmay be bodlly removedy 

